I was given a Toshiba Satellite Ultrabook (without internal i/o drives) that was loaded with Linux Mint 18.1 I haven't the savvy to use Linux and wanted the simpler Windows 7. I tried to install Windows 7 Home complete 64 bit, however it won't work says I'm missing a driver for the external DVD drive. Because Linux is installed, how can I reformat without a floppy and in the DVD nothing loads?